Lubricant



Patented a, 1925.

.1 won a. wnns'rna, one antenna,

MS, '1'0 MERCO NOBDSTRQBII VVE CUZHPANY, OF SAN F .A

A GOOEATION OF DELAWARE.

FOBNIA, ASSIGNOR, BY M'ESNE ASSIGN- 01500, CALIFORNIA,

LUBRICANT.

N Drawing.

T 0 all whom it may concern:

Be it known that I, MILTON- F. WEBSTER, a citizen of the United States; and a resident of Alameda, in the county of Alameda and 53 State of California, have invented certain new and useful Improvements in Lubricants, of which the following is a specification.

The invention relates to an improvement in lubricants.

The object of the invention is to produce an improved lubricant especially adapted for use in lubricating valves employed in tank car service. I

necessary that the lubricant be substantially insoluble in both gasoline and Water. The drainage cock or valve of tank cars is located in the bottom of the tank. When such cars are used for the transportation of gasow line and the like such foreign substances as water being heavier than gasoline settle in the bottom of the tank around the valve. Hence it is necessary that the lubricant for lubricating the valve be insoluble not only in the gasoline but also in water. So far as is known there is no lubricant on the market today which serves this double function.

I have found that a lubricating compound consisting of a mixture of the proper proportions of castor oil and carnauba wax has the double property of being substantially insoluble in both gasoline and water and is therefore especially adapted for use in For this purpose, it is Application filed September 7, 1922. Serial No. 586,789.

yalves on tank cars employed for transport mg gasoline and the like substances. It will 5 be understood that the improved lubricant is not to berestricted to this particular use but that it may be employed for other purposes. In preparing my improved lubricant I make a mixture consisting of substantially 0% castor oil and 20% carnauba wax. The ingredients are warmed so as to facilitate blending and then are thoroughly mixed together. The mixture is then poured into molds of the requisite size and shape. When cool the lubricant, as thus prepared, is ready for use and may be used in stick form or in a pressure gun in the usual manner in which semiplastic lubricants are used. While I prefer to mix the castor oil and carnauba wax substantially in the proportions given,

it will be understood that they may vary' somewhat. For example, a mixture consisting of 77 or 78% of castor oil and 23 or 22% of carnauba wax makes a highly satisfactory I lubricating compound for the purpose stated. i

Having thus described the invention what I claim as new is A lubricating compound for use on valve parts and the like subjected to gasoline and water consisting of a mixture of substan; tially eighty per cent castor oil and twenty per cent carnauba wax.

MILTON F. WEBSTER. 

